Answer:
Option 4, The tongue
Explanation:
In an unresponsive patient, the most common cause of airway obstruction is the tongue. When a person becomes unresponsive, the muscles in their body, including those in the jaw and throat, may relax, causing the tongue to fall back and block the airway. This blockage prevents air from reaching the lungs, leading to difficulty or inability to breathe. Therefore, managing the airway by addressing the position of the tongue is crucial in such situations to ensure adequate ventilation and oxygenation.
